Hi Daniel,

I send you 2 files pcap, capture on server side.

+ Server: 192.168.1.77

+ Client: 192.168.1.134

+ Scenario:

User 102 call to ring group 777 - has user 100 (192.168.1.134) and user 101 (192.168.1.164).

User 100 is offline but it's configured push notification from Apple to wake up, register and receive INVITE.

I pick up phone on 101 but 100 can not receive the CANCEL message to stop the ringing tone.

1) Pusher_ok.pcap: User 100 can revice the CANCEL message.

2) Pusher_failed.pcap: As I told above, when user 101 pick up the phone, Freeswitch send CANCEL message to user 100. But when message go to Kamailio, Kamailio reply 481 - Call leg/transaction does not exist. (I can't capture this packets).

I also include the log on Freeswitch send CANCEL message and revice the 481.

Kamailio doesn't send 481 from the C code in the case of call, it either receives it or it is something in config.

=> This is configure on kamailio: default.cfg, it check t_check_trans()

=======================================================

route[PREPARE_INITIAL_REQUESTS]

{

if (is_method("CANCEL")) {

if (t_check_trans()) {

route(RELAY);

} else {

sl_send_reply("481", "Call leg/transaction does not exist");

}

exit();

=======================================================

Thank for your support !

Regards,

Hai Bui

On Thu, Mar 9, 2017 at 8:27 PM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:

Hello,

can you provide pcap (or full ngrep output) for all messages of such a call, from initial invite, including all responses and the other requests? The sip trace has to be taken on kamailio server.

Kamailio doesn't send 481 from the C code in the case of call, it either receives it or it is something in config.

Cheers,
Daniel

On 09/03/2017 06:59, Hai Bui Duc Ha wrote:
Hi all,

I have problem when use module pusher on Kazoo.

The user after receive call from pusher can not receive the Cancel message if have another people pick up this phone.

I trace log and debug on Kamailio and see the Freeswitch sent Cancel message but Kamailio reply 481 - Call leg/transaction does not exist.

The configure on Kamailio: default.cfg

=======================================================

route[PREPARE_INITIAL_REQUESTS]

{

if (is_method("CANCEL")) {

if(t_lookup_cancel()) xlog("L_INFO","$ci|log|======== t_lookup_cancel()");

xlog("L_INFO","$rm from $fu (IP:$si:$sp) ---CAPTURED IN MAIN---\n");

if (t_check_trans()) {

xlog("L_INFO","$rm from $fu (IP:$si:$sp) ---CHECK TRANS TRUE---\n");

//xlog("L_INFO", "$ci|log|====================================");

route(RELAY);

} else {

xlog("L_INFO","$rm from $fu (IP:$si:$sp) ---CHECK TRANS FALSE---\n");

sl_send_reply("481", "Call leg/transaction does not exist");

}

exit();

} else if (is_method("ACK")) {

if (t_check_trans()) {

route(RELAY);

}

exit();

}

=======================================================

As I read on http://kamailio.org/docs/modules/4.3.x/modules/tm.html#tm.f.t_check_trans

Kamailio see the cancel message not same the transaction INVITE message.

INVITE message:

------------------------------------------------------------------------

INVITE sip:100@quydang.htk.cvoice SIP/2.0

Via: SIP/2.0/UDP 192.168.1.77:11000;rport;branch=z9hG4bKK9jyp8mXUZHgS

Route: <sip:192.168.1.77:5060>

Max-Forwards: 49

From: "02 quy" <sip:102@quydang.htk.cvoice>;tag=04K2SappeyDtj

To: <sip:100@quydang.htk.cvoice>

Call-ID: 19fa9228-ef95-11e6-b473-1f645951fd7b

CSeq: 103030653 INVITE

Contact: <sip:mod_sofia@192.168.1.77:11000>

User-Agent: Anttel

Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE

Supported: path, replaces

Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer

Content-Type: application/sdp

Content-Disposition: session

Content-Length: 247

X-AUTH-IP: 192.168.1.141

X-AUTH-PORT: 64799

X-KAZOO-AOR: sip:100@quydang.htk.cvoice

X-KAZOO-PUSHER-Token-Proxy: sip:192.168.1.77:5060

X-KAZOO-PUSHER-Token-ID: 803F0D6610AC5979C6F0513A3A4BE62E0BAF1530DC7A98C2C0DC13D784585FBE

X-KAZOO-PUSHER-Token-Type: apple

X-KAZOO-PUSHER-Token-App: com.htkinc

X-FS-Support: update_display,send_info

Remote-Party-ID: "02 quy" <sip:102@quydang.htk.cvoice>;party=calling;screen=yes;privacy=off

v=0

o=FreeSWITCH 1486708670 1486708671 IN IP4 192.168.1.77

s=FreeSWITCH

c=IN IP4 192.168.1.77

t=0 0

m=audio 24764 RTP/AVP 0 8 101 13

a=rtpmap:0 PCMU/8000

a=rtpmap:8 PCMA/8000

a=rtpmap:101 telephone-event/8000

a=fmtp:101 0-16

a=ptime:20

------------------------------------------------------------------------

CANCEL message:

------------------------------------------------------------------------

CANCEL sip:100@quydang.htk.cvoice SIP/2.0

Via: SIP/2.0/UDP 192.168.1.77:11000;rport;branch=z9hG4bKK9jyp8mXUZHgS

Route: <sip:192.168.1.77:5060>

Max-Forwards: 49

From: "02 quy" <sip:102@quydang.htk.cvoice>;tag=04K2SappeyDtj

To: <sip:100@quydang.htk.cvoice>

Call-ID: 19fa9228-ef95-11e6-b473-1f645951fd7b

CSeq: 103030653 CANCEL

Reason: SIP;cause=200;text="Call completed elsewhere"

Content-Length: 0

------------------------------------------------------------------------

How can I know it same transaction ? We have any idea to solve this problem ?

Thank for advice !

Regards,

Hai Bui

--

Hai Bui

VoIP engineer, Cvoice team, HTK-HCM Office

Mobile: +84-165-618-9876
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-- Daniel-Constantin Mierla www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio Advanced Training - Mar 6-8 (Europe) and Mar 20-22 (USA) - www.asipto.com Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com
_______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

Hai Bui

VoIP engineer, Cvoice team, HTK-HCM Office

Mobile: +84-165-618-9876